Early Infant Micronutrition and Development
RART
Vitamin B12 Status in Infancy and the Effect of Providing Vitamin B12 to Infants With Signs of Suboptimal Vitamin B12 Status - a Registry-based, Randomized Controlled Trial
2 other identifiers
interventional
600
1 country
1
Brief Summary
Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. Poor status is also seen in affluent countries such as in Norway. Vitamin B12 is crucial for normal cell division and differentiation and necessary for the development and myelination of the central nervous system. Deficiency is also associated with impaired fetal and infant growth. In the proposed study we will measure the effect of daily oral vitamin B12 supplementation infants on neurodevelopment. We also aim to measure the impact of B12 supplementation on several other outcomes. Study design: Individually randomized double-blind placebo-controlled trial breastfed infants who will be assigned to a screening group (in which measurements will be obtained immediately) or a control group (in which serum will be stored and measurements done after one year). Pregnant women will be informed about the study during their first antenatal visit at the clinic and that we will re-approach them on their 6-week visit to their public health nurse. Infants who are deficient will be treated with peroral or intramuscular injections with 400 µg cyano-cobalamin. Infants in the control group will not be offered any intervention their blood sample will be stored for one year and then analyzed for the same nutrients as the intervention group. Outcomes: Primary: (i) neurodevelopment in children measured at 12 months of age (ii) growth in children measured by attained weight and length at 12 months. Secondary: (i) neurodevelopment and cognitive functioning in children later in life
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Dec 2021
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 9, 2021
CompletedFirst Posted
Study publicly available on registry
August 16, 2021
CompletedStudy Start
First participant enrolled
December 8, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 15, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
October 15, 2029
ExpectedApril 18, 2023
April 1, 2023
3.9 years
August 9, 2021
April 14, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Neurodevelopment
Bayley Scales of Infant Development 4th edition
12 months of age
Prevalence of vitamin B12 deficiency
Number of children with elevated plasma homocysteine or low cobalamin
1-3 months of age
Prevalence of other vitamin deficiencies
Number of infants with vitamin deficiencies other than vitamin B12 deficiency
1-3 months of age
Secondary Outcomes (5)
Neurodevelopment measured by the Ages and Stages Questionaire
4-12 months of age
Vagal tone
12 months of age
Eye tracking
12 months of age
Neurodevelopment later in childhood
5 years
Adverse events
3 months after treatment with vitamin B12
Other Outcomes (1)
Thyroid function
12 months of age
Study Arms (2)
Screening - treatment
EXPERIMENTALFrom 6 weeks of age, infants will be screened for elevated plasma total homocysteine concentrations. Those who have a concentration above the defined cut-off will be treated with cobalamin (vitamin B12).
Control
NO INTERVENTIONThe control-group sample will be stored and analyzed when the child is 12 months old. Those with elevated tHcy will contribute to the control group.
Interventions
Intramuscular injection of 400 µg cobalamin to children with elevated thcy at enrollment
Eligibility Criteria
You may qualify if:
- Availability of informed verbal consent
- Plan to reside in the defined study area for the next 12 months
- Mothers intend to breastfeed their children for at least 8 months, and exclusively for 4 months
You may not qualify if:
- Severe systemic illness requiring hospitalization
- Growth retardation
- Severe congenital malformations
- Plasma cobalamin concentration \<148 pmol/L (These children will be treated for vitamin B12 deficiency and not included in the RCT, but will be included in the cohort design)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sykehuset Innlandet HFlead
- University of Bergencollaborator
- University of Oslocollaborator
- Inland Norway University of Applied Sciencescollaborator
Study Sites (1)
Innlandet Hospital Trust
Lillehammer, 2615, Norway
Related Publications (10)
Hay G, Johnston C, Whitelaw A, Trygg K, Refsum H. Folate and cobalamin status in relation to breastfeeding and weaning in healthy infants. Am J Clin Nutr. 2008 Jul;88(1):105-14. doi: 10.1093/ajcn/88.1.105.
PMID: 18614730BACKGROUNDTorsvik I, Ueland PM, Markestad T, Bjorke-Monsen AL. Cobalamin supplementation improves motor development and regurgitations in infants: results from a randomized intervention study. Am J Clin Nutr. 2013 Nov;98(5):1233-40. doi: 10.3945/ajcn.113.061549. Epub 2013 Sep 11.
PMID: 24025626BACKGROUNDDror DK, Allen LH. Effect of vitamin B12 deficiency on neurodevelopment in infants: current knowledge and possible mechanisms. Nutr Rev. 2008 May;66(5):250-5. doi: 10.1111/j.1753-4887.2008.00031.x.
PMID: 18454811BACKGROUNDKvestad I, Taneja S, Kumar T, Hysing M, Refsum H, Yajnik CS, Bhandari N, Strand TA; Folate and Vitamin B12 Study Group. Vitamin B12 and Folic Acid Improve Gross Motor and Problem-Solving Skills in Young North Indian Children: A Randomized Placebo-Controlled Trial. PLoS One. 2015 Jun 22;10(6):e0129915. doi: 10.1371/journal.pone.0129915. eCollection 2015.
PMID: 26098427BACKGROUNDBjorke-Monsen AL. Is exclusive breastfeeding ensuring an optimal micronutrient status and psychomotor development in infants? Clin Biochem. 2014 Jun;47(9):714. doi: 10.1016/j.clinbiochem.2014.05.022. Epub 2014 May 17. No abstract available.
PMID: 24845709BACKGROUNDForssman L, Ashorn P, Ashorn U, Maleta K, Matchado A, Kortekangas E, Leppanen JM. Eye-tracking-based assessment of cognitive function in low-resource settings. Arch Dis Child. 2017 Apr;102(4):301-302. doi: 10.1136/archdischild-2016-310525. Epub 2016 Aug 22.
PMID: 27551061BACKGROUNDGraziano P, Derefinko K. Cardiac vagal control and children's adaptive functioning: a meta-analysis. Biol Psychol. 2013 Sep;94(1):22-37. doi: 10.1016/j.biopsycho.2013.04.011. Epub 2013 May 4.
PMID: 23648264BACKGROUNDStrand TA, Taneja S, Ueland PM, Refsum H, Bahl R, Schneede J, Sommerfelt H, Bhandari N. Cobalamin and folate status predicts mental development scores in North Indian children 12-18 mo of age. Am J Clin Nutr. 2013 Feb;97(2):310-7. doi: 10.3945/ajcn.111.032268. Epub 2013 Jan 2.
PMID: 23283502BACKGROUNDBjorkevoll SMG, O'Keeffe M, Konijnenberg C, Solvik BS, Sodal AF, Kaldenbach S, McCann A, Ueland PM, Kvestad I, Ersvaer E, Holten-Andersen MN, Bakken KS, Strand TA. Infant vitamin B12 status and its predictors - cross-sectional baseline results from an ongoing randomized controlled trial. Am J Clin Nutr. 2025 Sep;122(3):803-810. doi: 10.1016/j.ajcnut.2025.06.029. Epub 2025 Jul 1.
PMID: 40609749DERIVEDBakken KS, Kvestad I, Bjorkevoll SMG, Solvik BS, Kaldenbach S, McCann A, Holten-Andersen MN, Ersvaer E, Konijnenberg C, Strand TA. Vitamin B12 status in infancy and the effect of a vitamin B12 injection in infants with subclinical vitamin B12 deficiency: study protocol for a register-based randomised controlled trial. BMJ Open. 2023 Apr 20;13(4):e069102. doi: 10.1136/bmjopen-2022-069102.
PMID: 37080624DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Tor A Strand, M.D. / Ph.D.
Sykehuset Innlandet HF
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 9, 2021
First Posted
August 16, 2021
Study Start
December 8, 2021
Primary Completion
October 15, 2025
Study Completion (Estimated)
October 15, 2029
Last Updated
April 18, 2023
Record last verified: 2023-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- Data will be available not later than 5 years after the study have completed enrollment and the first year of follow-up of all children.
- Access Criteria
- Data available on request. In order to meet ethical requirements for the use of confidential patient data, requests must be approved by Regional Committee for Medical and Health Research Ethics in Norway.
We plan to share data with other researchers.